Sarah Bacon recommends Mark Scott’s www.DivingVietNam.com.
We booked a private snorkelling trip for our family (2 adults, 2 kids) with Mark and it’s been a highlight of our trip to Vietnam. Mark is extremely knowledgeable about the area, responsive to messages / queries and looked after each part of our trip. As well as all that, he’s a super nice guy to spend a day out with. I’d highly recommend him to anyone that wants a great day out snorkelling 🤿